Granted Patent
Utility
US 6,344,458 · App. 09/459,792
Piperazine ethylamide derivatives
Inventors:
Michael G. Kelly, Yvette L. Palmer
Patented Case
View Patent ↗
Granted: Feb 5, 2002
Filed: Dec 13, 1999
Inventors
Michael G. Kelly
Yvette L. Palmer
Assignee (at issue)
Amerimas Home Products, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.